Oven structure



Aug. 3 1926.l

D. F. DOMIZI OVEN STRUCTURE 3 Sheets-Sheet 1 Filed Dec. '7, 1922 P l Laren-zii w //4 mi@ Ik? o Wh\\ mmf,

Aug. 3 1926.. y D. F. DoMlzl OVEN vSTRUCTURE Filed Dec. 7, 1922 3 Sheets-Sheet 2 itl@ Patented Aug. 3, i926'.

niafvrn Ff. nomfrzrg. or CLEVELAND; oitroa.

safran ovlEN STRUCTURE; i

Appnati'on meanecembr '7, ieee; sentirne. @65,5852

This invention relates tofovens orot'her lieatedchanibers in which it is desirable to prevent the escape of heat or in which" it is desirable to avoid distortion ot thewvall's by expansion due toheat.

An object of" the invention is toprovide an oven structure in which there is very little l'oss otulieat" due to conduction or radiation through the Walls. y

A1 further object is to provide a heat insulated oven structure in which the oven is" perfectly sealed against entrance ofy dust thereto' from the insulatingA niaterial inthe Walls thereof.

A; further object' is to provide ani oven" structure' in which unequal heating' of dit# ferent parts ol the oven such asl would" be caused by'a` fire in one compartment o'ii'the oven would" notA result' in` injury oii'thel oven" structure and in which excessive distortion' due to sucli lie-ating' fu'fould'Jv be avoided.`

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A further object ist@ provide,an*4 oven enclosing4 strueture in which iioints" inthel outside 'Wall through which" heat" islost and" through iv'hiel'i dust mayent'er the ovenare eliminated. y x

A furtherobject'is'to providevv an oven en@ closing);A structure which` is" of durable" conf struction, which" is'e'asy to build andil Which 3U islnexpensive. y y

Other objects Will be' apparent trjoidthe following description anda annexed drawings; y l

The following" description', together'fvvith the accompanying" drawings, set! o'rtli in" der tail certainl means' en'ibod'ying niyk inventioii, the disclosed nieans, however, constituting". but one of the` various mechanical fornis' in?l which tlie'princi'pal oi theinventioirinay be" employed'. d

Reference` sliould bei liadV to" the accom# panying drawings-in WhicliFig; Al isaj side elevation of a cornplete'oven; Figi 2j'isafragmentary vertical section through tire lower partfof a" side `Wall andi a portion'V` ot the oven bottoni; Iiig;` 3I is' a perspectiveI view `ofthe enclosing"structure, a portion' thereoit` being' broken away to show the oven frame Work; Fig; il is; av vertical" section ture; Fig. 5 is a fragmentary side'eflevation" suitable supporting beanie 2'y and carries4` a rigid struo't'urlf oven traine vvorlriv'hich con#` sists of vsills 3' andfupper rails 4 connected by vertical ACorner posts 6I The oven'- rnay be of' anyfde'sired shape suitable for thel Worlfor Wliichit is intended but for simplicity` has been shown herein as rectangular. The stri'ictiir'al loven traine rv'orlt forins a rigid support orintei# mediatepartitions 7 which may be" used to divide the oven into compartiiientie'` and" also for shafts carryingi'the guide sprockets of: anJ endless' conveyor 8` Whiehniay be' used to convey" artclesthrng tlfejovn. 4Tile" structural"traine Work' of the oven is'entirely" enclosed nie'ans of' aVA boil'il'e' sheetl metalL casing" consisting otsideplate's `9 riveted to corner angles' 1U which" are adaptedv to fit upon" the outside of' the corner posts" 544 oti pests 5 and'vinteriiiediate isfri'vetedfto c'onnectingranggles 12x' interposed between the side plates gend1 the top plate" 11i'. The sheet metal casing" is adapted to beVV lowered" over" thefstructurfi trame' Work anlftobesupportedtherby with its lv'ver' edgeoverlajppinith ottol'n l` of the oven.v The' sheetinetacasing, however, is lfree troni' attachment to any*v part of theL oven" tranie' Woil' softli'at the" Walls and traine` Werl? cian Inovejrel at'ivejly toeaoh otli when* expanded" by tlieheat ofthe oven. Arranged xiirrows' up the sides `and over thetopof the sheet Inetal casing*l are' anchoriiigfrvirefs' 13 which haver their' inner e'nds securedt jthef casingj preferablybyweldng; The anche'ring wires" ltfserv'e to support: tlieflieatl insulating cov-V ering" upon" the outsidefoflthe slieet metal' ner layer and are provided with central openings to receive the anchoring wires 13. i

Upon the outside of the blocks 16 are tiewires 17 corresponding to the tie-wires 15 extending over the inner layer .of blocks. lThe anchoring wires 13 are also twisted around the tie-wires 17. A woven-wire fabric 18 suitable for supporting plaster is held upon the outer face of the block 16 by the ends of the anchoring wires 13 which pass through the meshes of the fabric and are Ibent over to hold the' fabric in place. After the blocks and wire fabric has been secured in place upon the sheet metal cas- Jing a coating of plaster 19 is applied to the lwoven wire fabric.

The side and top wallsv 9 and 11 kof the sheet metal casing form a perfect seal for preventing the entrance into the oven of the heat insulating material'. the fact that the only metal touching the walls of the sheet metal casing upon the outside are the smallanchoring wires 13, there can be very little loss of heat due to conduction and radiation. The sheet metal casing also forms a vperfect seal for` preventing escape of heated gases from the oven. The sheet metal casing isfrelatively light and can be easily placed over the oven frame work after which the heat insulating coating can be quickly put infplace. s n

Having described my invention, I claim- 1. An oven structure comprising a structural oven framework, and a separate structure forming the enclosing walls fitting over said framework in engagement therewith, said enclosing walls being free from aty,tachinent to said framework whereby relativemovements between parts ofthe `framework and walls causedby expansion due to heat lare permitted. w

2. An oven structure comprising a structural oven framework, and abox-like enclosing structure conforming to the frame work forming the side and top walls of the oven adapted to be slipped over said structural framework and to be supported thereon.

3. An oven structure comprising astructural oven framework, and a` box-like enclosing structure forming the side and top walls formed of heat insulating material, said enclosing structure fitting over said framework in engagement therewith but not attached thereto.

4t. An oven structure comprising a structural oven framework,

a sheet metal boxlike casing fitting over said framework iny `engagement therewith but not attached thereto, and a heat insulating covering upon the outside of said sheet metal casing.

5. An oven structure comprising a structural oven framework, a sheet metal boxlike casing fitting over said framework in engagement therewith but not attached thereto, anchoring members carried by said In view of casing and a heat insulating covering sen cured to said casing by said anchoring members. s

6. An oven structure comprising a rectangular angle iron oven framework, and a box-like enclosing structure conforming to the frame work and adapted to be slipped over said framework and to be supported thereon.

7 An oven structure comprising a structural oven framework and a sheet metal box-like vcasing adapted to be slipped over said framework, said casing comprising vertical angle iron corner members adapted to fit over the corners of the framework, `sheet metal side plates secured to said corner members, and a sheet metal plate forming the top of the casing.

8.An oven structure comprising a struc-` rinsulating covering through which said wires extend, and tie-wires connecting said anchoring wires for holding said covering in place. g

9. An oven structure comprising a structural ovenframework, a sheet metal box-` like casing adapted to be slipped over said framework, said casing being supported by the framework but not attached thereto, anchoring members carried by said casing, a heat insulating covering held in place by said anchoring members, a plaster support upon the outside of the insulating covering of the side walls and a plaster coating carried by said support. a A

10. An oven structure comprising a structural oven framework, a sheet metal boxlike casing adapted to be slipped over said framework, said casing being supported by the framework but not attached thereto, one or more layers of heat insulating blocks upon the outside of said casing, anchoring mem-l lbers carried by said casing for securing said blocks i..L place, a wire fabric held in place by said anchoring members outside the heat the outside of said plate, anchoring wires extending through said layer of blocksv and secured at their inner ends to said plates, and tie wires extending across the outer face of said layer of blocks and secured to said anchoring wires. s

12. An oven wall structure, comprising a sheet metal plate, inner and outer layers of heat insulating blocks carried by the plate, the blocks of said layers'being arranged in staggered relation, anchoring wires secured plate, a layer of heat insulating blocks upon at their inner ends to said plate and extending between certain of the blocks in one layer and through blocks of the other layer, tie wires extending between the layers of blocks and connected to the anchoring wires, and tie wires outside the layers of blocks and connected to the anchoring wires.

13. An oven wall comprising a sheet metal plate, inner and outer layers of heat insulating blocks carried by the plate, tie wires extending over each of said layers, anchor ing wires welded at their inner ends to said plate, said anchoring wires extending through the block layers and fastened to the tie wires.

14. An oven wall comprising a sheet metal plate, a heat insulating covering on the outside of said plate, a plaster supporting member upon the outside of said covering, an.

choring wires secured at their inner ends to tlie plate, passing through the heat insulating covering and secured to said plaster su pp orti ng member.

lo. An oven structure comprising a structural oven framework, a sheet metal casing adapted to be slippedl over said framework, a covering of heat insulating blocks over the top and sides of said casing, rows of anchoring wires extending `over the sides and top of said casing, said anchoring wires being secured at their inner end to the casing, tie wires outside the heat insulating blocks, said wires extending over the tops and sides of the casing and secured to said anchoring wires.

16. An oven wall comprising a sheet metal plate, a plurality lof layers of insulating blocks the blocks of one layer being stag gered with respect to the blocks of the adj acent blocks, tie-wires extending along the outside of each layer of blocks, and anchoring wires secured at their inner ends to the plate and extending through the heat insulating layers, said anchoring wires being twisted around the tie wires over each of the layers.

signature. l

` DAVID F. DOMIZI. 

